水利科技与经济
水利科技與經濟
수리과기여경제
2012年
9期
101-105
,共5页
等值线分析系统%区域平均值%面平均降水量%网格法%等值线法%MapGIS
等值線分析繫統%區域平均值%麵平均降水量%網格法%等值線法%MapGIS
등치선분석계통%구역평균치%면평균강수량%망격법%등치선법%MapGIS
Isolines analysis system%the regional average%the areal precipitation%the grids method%the Isolines method%MapG1S
为了能够方便、快捷而准确地求出任意边界内的区域平均值,应用自主开发的基于GIS的等值线分析系统,以降水数据为例,给出了面平均值计算机算法中的网格法和等值线法的原理及实现步骤,并论述了它的快捷性、准确性,以及两种算法的优缺点和适用范围。
為瞭能夠方便、快捷而準確地求齣任意邊界內的區域平均值,應用自主開髮的基于GIS的等值線分析繫統,以降水數據為例,給齣瞭麵平均值計算機算法中的網格法和等值線法的原理及實現步驟,併論述瞭它的快捷性、準確性,以及兩種算法的優缺點和適用範圍。
위료능구방편、쾌첩이준학지구출임의변계내적구역평균치,응용자주개발적기우GIS적등치선분석계통,이강수수거위례,급출료면평균치계산궤산법중적망격법화등치선법적원리급실현보취,병논술료타적쾌첩성、준학성,이급량충산법적우결점화괄용범위。
In order to calculate the regional average within the arbitrary boundary conveniently, quickly and accurately, there are the principle and implementation steps about the grids method and the Isolines method about calculating the areal average through computer in the paper , basing on GIS Isolines analysis system with the rainfall data as an example, and discussing its fast, accuracy, advantages or disadvantages and the application scope of the two algorithms. recipitation; the grids meth-